Observation information
- date-obs: 2017-01-12
- time-obs: 09:04:55.884000000
- date-end: 2017-01-12
- time-end: 11:19:43.882800000
- obs_id: T01_151T01_9000000960
- exposure: 4585.00956039
- sourceid: ngc1275
- observer: varsha
- ra_pnt: 49.95067
- dec_pnt: 41.5117
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T01_151T01_9000000960_06991cztM0_level2.evt
| modeM0/AS1T01_151T01_9000000960_06991cztM0_level2_quad_clean.evt
|
| Size (bytes) | 450,305,280 | 95,094,720 |
| Size | 429.4 MB
| 90.7 MB
|
| Events in quadrant A | 3,267,185 | 621,560 |
| Events in quadrant B | 3,521,703 | 625,887 |
| Events in quadrant C | 3,051,744 | 602,068 |
| Events in quadrant D | 3,366,760 | 588,782 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13505 | 3 |
| B | 0 | 14351 | 2 |
| C | 0 | 13143 | 2 |
| D | 0 | 13769 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6330 | 130 | 2.053712% |
| B | 6330 | 270 | 4.265403% |
| C | 6330 | 84 | 1.327014% |
| D | 6330 | 91 | 1.437599% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 7620 | 6331 | 9 | 9 | 0.12% | 0.14% |  |
| B | 7620 | 6331 | 108 | 108 | 1.42% | 1.71% |  |
| C | 7620 | 6331 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7620 | 6331 | 4 | 4 | 0.05% | 0.06% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 15 | 234 | 92609 | 555.76 | 823 | 806 | 165.2 |
| A | 0 | 226 | 7966 | 43.35 | 823 | 806 | 165.2 |
| A | 12 | 194 | 7618 | 41.24 | 823 | 806 | 165.2 |
| B | 4 | 81 | 248095 | 1599.47 | 814 | 797 | 154.6 |
| B | 0 | 219 | 38344 | 242.85 | 814 | 797 | 154.6 |
| B | 0 | 214 | 34048 | 215.06 | 814 | 797 | 154.6 |
| C | 13 | 61 | 6264 | 30.57 | 781 | 784 | 179.2 |
| C | 8 | 222 | 2846 | 11.5 | 781 | 784 | 179.2 |
| C | 12 | 4 | 2478 | 9.45 | 781 | 784 | 179.2 |
| D | 8 | 195 | 256532 | 1315.9 | 794 | 770 | 194.4 |
| D | 2 | 14 | 23105 | 114.91 | 794 | 770 | 194.4 |
| D | 14 | 34 | 21976 | 109.11 | 794 | 770 | 194.4 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |